Libin Zhu

collaborators

2 papers

stat.ML2025

Iteratively reweighted kernel machines efficiently learn sparse functions

Libin Zhu, Damek Davis, Dmitriy Drusvyatskiy +1

The impressive practical performance of neural networks is often attributed to their ability to learn low-dimensional data representations and hierarchical structure directly from…

math.PR2025

Spectral norm bound for the product of random Fourier-Walsh matrices

Libin Zhu, Damek Davis, Dmitriy Drusvyatskiy +1

We consider matrix products of the form $A_{1} (A_{2} A_{2})^{⊤} \dots (A_{m} A_{m}^{⊤}) A_{m + 1}$ , where $A_{i}$ are normalized random Fourier-Walsh matrices. We identify an interesting polyn…